Home / 145,852.20-218,778.30-144,930.60

Finding the Fourth Proportional to 145,852.20, 218,778.30 and 144,930.60

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Solution

The fourth proportional to 145,852.20, 218,778.30 and 144,930.60 is: 217,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,852.20 : 218,778.30 = 144,930.60 : x
  2. Step 2: Convert to fraction form
    145,852.20/218,778.30 = 144,930.60/x
  3. Step 3: Cross multiply
    145,852.20x = 218,778.30 × 144,930.60
  4. Step 4: Simplify right side
    145,852.20x = 31,707,670,285.98
  5. Step 5: Solve for x
    x = 31,707,670,285.98/145,852.20
  6. Step 6: Final answer
    x = 217,395.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.